Acoustic emission for bridge safety inspection began in the early 80 s, mainly used in steel structure and concrete structure bridge, early cause PAC in recent years, the company made a lot of wire rope detection and monitoring of cable-stayed bridge project, good results have been achieved.
Acoustic emission technique in ensuring safety of large-scale bridge mainly has the following two aspects - the comprehensive test and structure integrity evaluation of Bridges in service. By applying the traffic load of the bridge by acoustic emission testing found defective parts whole, and safety evaluation.
To 24-hour continuous monitoring of Bridges in service, through the key position fixed installation of acoustic emission sensors, make its all-weather on-line continuous monitoring for a long time, and the abnormal phenomena and safe accident to the police. Acoustic emission system installed on the bridge site, can be in the remote monitoring and control system by computer remote communication system and network protocol for remote monitoring and alarm.